A "bike messenger" refers to a person who delivers packages, documents, or important items by riding a bicycle instead of using a car or other means of transportation. Full definition
A friend of mine who's very good with money is fond of pointing out that the average bike messenger makes more money than the average day trader. (automaticfinances.com)
Premium Rush stars Joseph Gordon - Levitt as an impetuous bike messenger in New York City who finds himself becoming an object of great attention for the NYPD after he makes a package pickup. (slashfilm.com)
As bike messenger he had befriended a client's security guard. (inc.com)